[Problem] To provide a system for installing and storing a traction operating table for lower limb joint surgery, the system enabling a traction operating table for lower limb joint surgery to be more easily installed on an operating table main body.[Solution] A traction operating table for lower limb joint surgery according to an aspect of the present invention comprises: a main frame part provided with a main frame having two rod-shaped members； a position adjusting part provided with a moving frame that is movable, and a foot fixing portion for fixing a foot； and a supporting leg part joined to the position adjusting part to support the main frame part, and capable of adjusting the incline of the main frame part. The position adjusting part includes a grip portion cap able of setting, by one gripping action, a first mode in which a moving action along the main frame and an incline adjusting action of the supporting leg part are fixed； a second mode in which the moving action along the main frame is released and the incline adjusting action of the supporting leg part is fixed； and a third mode in which the moving action along the main frame and the incline adjusting action of the supporting leg part are released.
